149861142 has 12 divisors (see below), whose sum is σ = 324699180. Its totient is φ = 49953708.

The previous prime is 149861093. The next prime is 149861197. The reversal of 149861142 is 241168941.

It is a junction number, because it is equal to n+sod(n) for n = 149861097 and 149861106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4162792 + ... + 4162827.

It is an arithmetic number, because the mean of its divisors is an integer number (27058265).

Almost surely, 2^149861142 is an apocalyptic number.

149861142 is an abundant number, since it is smaller than the sum of its proper divisors (174838038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149861142 is a wasteful number, since it uses less digits than its factorization.

149861142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8325627 (or 8325624 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 149861142 is about 12241.7785472537. The cubic root of 149861142 is about 531.1652799250.

The spelling of 149861142 in words is "one hundred forty-nine million, eight hundred sixty-one thousand, one hundred forty-two".